package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.mapper.EmployeeMapper;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import javax.servlet.http.HttpServletRequest;
import java.util.List;
import java.util.concurrent.TimeUnit;
@Slf4j
@Service
public class EmployeeServiceImpl extends ServiceImpl<EmployeeMapper, Employee> implements EmployeeService {
    @Autowired
    private RedisTemplate redisTemplate;
    @Override
    public R<Employee> login(HttpServletRequest request, Employee employee) {
        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = this.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if(emp == null){
            return R.error("登录失败");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }
        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    @Override
    public R<String> logout(HttpServletRequest request) {
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    @Override
    public R<String> save(HttpServletRequest request, Employee employee) {
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        this.save(employee);
        return R.success("新增员工成功");
    }

    @Override
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        Page<Employee>pageInfo=new Page(page,pageSize);
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        this.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    @Override
    public R<String> update(HttpServletRequest request, Employee employee) {
        log.info(employee.toString());
        this.updateById(employee);
        return R.success("员工信息修改成功");
    }

    @Override
    public R<Employee> myGetById(Long id) {
        log.info("根据id查询员工信息");
        Employee employee = this.getById(id);
        if (employee != null) {
            return R.success(employee);
        }
        return R.error("没有查询到员工信息");
    }
}
